Cambelt moves side to side!!!!

[Big Tone]

I would say either the water pump, tensioner pulley bearings are a bit noisey, or you need to back the belt tension off ever so slightly.
Was the job done at a garage? parts from the dealer?

Gen parts, DIY though.

Twist force is reasonable, nothing excessive.

[AudiA8Quattro]

Try backing off the tension very slightly.

[Big Tone]

Try backing off the tension very slightly.

Will do. Nice one

[WadGTI]

Oil too think perhaps?

I forgot to change my oil in one of my old cars in 2 years and the tensioner came loose which cause the timing chain to rattle inside the engine. no damage was done to the valve - but the oil was pretty think - I was sure this was the culprit.

[Big Tone]

Oil too think perhaps?

I forgot to change my oil in one of my old cars in 2 years and the tensioner came loose which cause the timing chain to rattle inside the engine. no damage was done to the valve - but the oil was pretty think - I was sure this was the culprit.

Nope, 5w30 3 months old.
sump and rocker cover removed and cleaned
Chain tensioner its fine
Pick up pipe and oilways cleaned

Its definitely the belt.